The Legend of Heroes: Trails Through Daybreak 2has plenty of important items for you to find to power yourself up, Holo Cores being one of the most important. These little gadgets will vastly alter the stats that increase when you perform a shard boost, meaning they’re essential for building each character exactly the way you want them.
There are a total of 20 different Holo Coresyou can obtain through Trails Through Daybreak, not including those that characters come equipped with automatically. This here guide will help you nab them all so you don’t miss any.

Where To Find Every Holo Core
First off, it’s important to note that Holo Core can be obtained in a variety of different ways, withonly a handful of them available to find in the actual world of Calvard. A lot of them are either given as rewards for playing Marchen Garten, completing achievements, or through the actual story itself. Without further ado, here’s where you can find every Holo Core, and when they first become available.
Two Holo Cores have names which can be considered spoilers for the main story and one side story. To avoid spoiling the story for you, we’ve omitted the names of these Holo Cores, but have still included where you can find them.

Act
Carabia
Gained automatically as part of the story after beating the first floor of Marchen Garten
Act 1-A
Alter Aim
Inside an Orbal Security Chest halfway through Zech Arms Underground Sector dungeon
Otis
Inside an Orbal Security chest in an alley to the right of Morgan’s Weapons & Armor in the Blacklight District
An achievement reward for opening 3 Orbal Security Chests

An achievement reward for winning three games of Seven Hearts
Inside an Orbal Security halfway through the Grand Spire dungeon

Act 2-A
Alter Sallos
Inside an Orbal Security Chest towards the end of the Abandoned Subway Line dungeon in the Auber District
Act 2-B
Mare - Gray
Earned for reaching Rank 5 in Gray on the LGC Alignment chart
N/A
Mare - Law
Earned for reaching Rank 5 in Law on the LGC Alignment chart
Mare - Chaos
Earned for reaching Rank 5 in Chaos on the LGC Alignment chart
An achievement reward for catching 25 different species of fish

Earned for completing the 4SPG Bounty in the Waterworks
Act 3 - Route A
Alter Oze
Inside an Orbal Security Chest halfway through the Condemned Sector dungeon in the Blacklight District
???

Acquired automatically as part of the story
Complete Renne’s Connection Event at the Aramis Academy Festival
Finale
Most of these can be obtained whenever you wish, though theones found in chests are best grabbed as soon as possible. If you missed one in a dungeon, it’s worth seeing ifyou can return to the dungeon later in the story, unless it was in either in Langport or Messeldam. You’re out of luck then.
Arguably, the one Holo Core you’ll have to work for the most is Alter Raym, as catching that many fish can be a bit of a task if you don’t know where you’re looking. Thankfully, we also have a guide on the complete workings of Trails Through Daybreak 2’s new fishing minigame, and where you can find every fish.

